7. What Barney's Job Actually Is
Barney has worked for some shady corporate businesses during the series' run, including the indomitable GNB. But we still have no idea what Barney actually does besides fire people, make deals with Koreans and make tons of money in the process. Whenever asked, Barney goes to his typical answer, "Ha! Please." But how great would it be if we finally knew what it was that Barney does? Of course, the mystery adds to the enigma of Barney Stinson, but the writers could certainly reveal this in a way that tugs at our heartstrings (they've pulled this off in the past). How great would it be if Barney came to the realization that his heartless career and obsession with suits was the reason he couldn't make it work with Robin? That would be a serious issue to address as these two get married and have to balance their love lives with their careers, and I think that's definitely worth watching.